5 results about "Engineering technician" patented technology

This invention discloses a method for strength calculation of a detachable support device. The method includes: obtaining the supporting force and radial force per unit length of the detachable support device; calculating the bending moment and horizontal tensile force at the connecting section based on the supporting force and the radial force per unit length; establishing the static moment equilibrium equation of the connecting section and determining the neutral axis position of the connecting section through iterative calculation; calculating the moment of inertia of the connecting section based on the neutral axis position; and calculating the maximum tensile stress borne by the fastener based on the moment of inertia, the bending moment, and the horizontal tensile force, so as to perform strength verification of the connecting section. This invention derives the strength verification formula and judgment criteria for key stress sections in detachable support structures, which is convenient for engineering technicians and ensures operational safety.

The invention discloses an electric power system reliability evaluation method considering multi-level earthquake influence, and the method gives consideration to the influence of factors such as multi-state of an earthquake scene, multi-level of earthquake influence and multi-state of electric power equipment according to the actual demands of the reliability analysis of an electric power system, and employs technical means such as a general generation function. The problem of reliability evaluation of the power system is solved. The method is scientific and reasonable, meets actual engineering requirements, is simple in calculation, is convenient for engineering technicians to use, and has high application value in engineering.

The present application belongs to the technical field of aerodynamic design of noise reduction structure in railway industry, and relates to an aerodynamic design method of a ventilation type noise reduction structure of high-speed railway and application thereof, comprising the following steps: determining a target value of load reduction rate of the ventilation type noise reduction structure; determining the size and shape of the ventilation type noise reduction structure; determining a load reduction rate calculation formula of the ventilation type noise reduction structure under different conditions, and calculating the load reduction rate of the ventilation type noise reduction structure under different ventilation hole distances L , chamfer radius R conditions according to the formula; determining the applicable conditions in the load reduction rate calculation formula; and determining the load reduction rate of the ventilation type noise reduction structure meeting the applicable conditions through the load reduction rate calculation formula. The load reduction rate calculation formula of the ventilation type noise reduction structure under different conditions proposed by the method clearly defines the target value of the load reduction rate to be reached under different working conditions, avoids large modeling analysis and large-scale testing, is suitable for ordinary engineering technicians, has strong engineering applicability, has a wide application range, and is conducive to the design of ventilation and noise reduction structure.

The microseismic monitoring-based processing method, device, and computer program product disclosed herein screen first effective microseismic events and determine their parameter information. This information is then used to determine an intersection chart representing the parameter information of the first effective microseismic events and first engineering parameters. Second engineering parameters can then be determined based on the intersection chart. If the second engineering parameters meet the requirements, they are used to guide the next stage of engineering construction. If the second engineering parameters meet the requirements, the engineering parameters can be dynamically adjusted in real time. This reduces the computational workload of on-site personnel and improves drawing efficiency. It also helps engineering technicians make rapid decisions based on comprehensive changes in fracturing curves.

The invention discloses a portable pull card for Chinese and foreign common metal alloy component and mark contrast, and aims to solve the problem that engineering technicians are inconvenient to inquire metal alloy parameters. The pull clamp is composed of three plate sheets, the first plate sheet and the second plate sheet are provided with display windows to form a T-shaped structure, and the third plate sheet is a sticking sheet capable of being pulled up and down. By pulling the third plate, the arrow is aligned with the appointed alloy grade, and the corresponding chemical components are displayed on the window. The method has the advantages that more than 180 common metal marks and chemical components are provided, mark contrast and chemical component elements can be expanded and updated according to application requirements, a simple, convenient and rapid query method is provided for engineering technicians, and the method has practical significance.